KOSO NORTH AMERICA

Compression ratio of 11.5 to 1 Honda -- MSX125 Grom -- (2015, 2014, 2020, 2018, 2016, 2017, 2019); Honda -- Z125M Monkey -- (2019, 2020)

Ideal engine part to complete Koso's big bore kitUnique four-valve design increases air flow and performanceProvides more power and torqueFeatures a forged piston, stainless steel 24 mm intake valves...

Big Bore Cylinder Kit - 150 Cc - Honda Grom/Monkey Mb640000 Honda -- Z125M Monkey ABS -- (2022); Honda -- MSX125 Grom -- (2022); Honda -- Z125M Monkey -- (2022); Honda -- MSX125 Grom ABS -- (2022)

Throttle body manifold gasket for use with OE or aftermarket manifolds Honda -- MSX125 Grom -- (2015, 2014, 2020, 2016, 2019, 2017, 2018, 2013); Honda -- Z125M Monkey -- (2019, 2020, 2021)

Koso North America Hi Flow Oil Pump - Honda Grom Nf640000 Honda -- MSX125 Grom -- (2022, 2024, 2023); Honda -- MSX125 Grom ABS -- (2024, 2022, 2023)

Increases the oil flow by 40%, helping to prevent engine failureKeeps the engine lubricated to optimize performanceRecommended for bikes with upgraded engines using the Koso North America 170cc Big...

Aluminum washer includedSensor not included

Aluminum washer includedSensor not included

Koso North America Cam Chain Tensioner - Honda Grom/Monkey Mu640000 Honda -- MSX125 Grom ABS -- (2024, 2023, 2022); Honda -- Z125M Monkey ABS -- (2023, 2022, 2024); Honda -- MSX125 Grom -- (2023,...

Koso North America Camshaft - Grom/Monkey - Honda Mm640000 Honda -- MSX125 Grom ABS -- (2022); Honda -- MSX125 Grom -- (2022); Honda -- Z125M Monkey -- (2022); Honda -- Z125M Monkey ABS -- (2022)

Optional camshaft kit can be used with stock engine, but delivers improved results when used with 170cc Big Bore kit Honda -- MSX125 Grom -- (2014, 2015, 2018, 2016, 2017, 2019, 2020); Honda -- Z125M...

Koso North America Ignition Coil - Grom/Monkey Ku640000 Honda -- MSX125 Grom ABS -- (2022, 2023, 2024); Honda -- MSX125 Grom -- (2024, 2023, 2022); Honda -- Z125M Monkey ABS -- (2024, 2022, 2023);...